Sprocket-wheel.



' C. A. JUENGST'. 'SPBOOKBT WHEEL. APPLICATION mun MAY '14, m3.

[1284789. Patented Feb. 16, 1915 CHARLES A. JUENGSE', Q CROTUN FALLS, NEW YORK, ASSIGNOR TO EIGLE'Y MACHINE COIIXPANY, GE GROTON EARLS, NEW

YORK, A CORPORATION OF NEW YORK.

To all who-1. 4 it in a Be it known that 1, CHARLES A. JUEsesr, a citizen of the United Staies, residing at Croton Falls, the county oi Viestoh er and State of New Yisri i have inventeiii an Improvement in Sprocket-Wheels, of which the following is specifioation.

My present inveniion reiates to sprooet Wheels generally, but more partiouliiriy to a sprocket wheel adapted to drive a cold metal saw, such as for example, is disoiosed in Letters Paitent, No. 864,424., i gusi, 21'" 1907, and No 870,180, Iiovember 7 1.967

The particular form of sprockeb to we my invention roiates one in which sprocket teeth are set (it an inciiimzion to the axis of rotation thereof, in order to provi e for the oonsirmfoz; of the on w mechanism as ii ont aforesaid The object my pres-om) invontimgis the provision of e s iirocket Wheel having iilQii! of exceeding iltiiii .meizii, in oriior to min 2111 the advantages which may be tier! eei therefrom one a hub of softer xiiet;i.i. in or der that the some may be nmohineii by any ordinary r i. of ioois.

In carrying out my im'eiiiioii 1. flliij flfsy a sprookeskeieton comprising a ring", wiirii teeth at predati erinioed positions in the periphery thereof made of manganese steel, and hub of iron or other similar materioi cast about the said ring and a portion said teeth, wiil be hereinafter more portieuiariy described. v

In the drawing, Figure i is an-elewiiiozi of a sprooko; Wheel mad-o i =ordunce with my present invention. Fig cross section when on iine 53, 2, Fig. i.

Referring to the drawing my imprw sprocket whee? preferably eoiriprises .1 Flu indicated at 1 'prm'ideii with suit *"i formed teeth 11. Ti'iis member is pro ably made of manganese sieei 213211. as shown in the drawing, the teeth are formed at an ,figiecifiest-iou of setters raisin.

made, the

Patented Feb; 16, 191i 5. Serial No. 535 435.

single wiih iiie rim. 1 prefer to call this momber a sprocket sizeieiom and after the same has been made in the construction of improved sprocket wheel, a pattern of a fuiLsizeii wheel is employed, as is customary in making a mold. After the mold has been sprocketskeleton is set therein as a core, and iron or other suitable metal, in a molten condition is poured into the mold and permitted to incase the ring and a per tion of each tooth at the base thereof, so ihat when the sprocket is removed from the mold a, hm; l

of i sf: iron or other suitable mato "Hui, Ks'ixloi'; is provided with a bore 13 for on; a rig stile same upon a shaft, and a key- Y 1% for securing the same, in position iiiereoii it. being understood that by form zig the {nib of iron or other similar cast ibi'm same may be readily machined, as

, b tools ordinal-i13 in use.

my invention:

1. As a new article of manufacture a wheel comprising a base of re1s- 7 rd memi and sprocket teeth set at an snare to and integral therewith, and a hub of relatively soft metal cast about the said base to eni-irely inc-lose the some and the adj 2012x1 3 portions of the said sprocket was. 9 i s a. new si'ticie of manufacture,

"m okei' woooi comprising a ring, spri'ioizei iieeth isv '-\..i'ii therewith, both ssiri pafzs is n T made oi: manganese steel, and. a hub a a beveied rid shone the mg so as to entirely inciose the sam portion of the teeiiii. 22$ the base titer-c is (V-he pro; ing portion enr at rigid origin; 2

hub

--. dgy of April. 19/};

A. JUEN i 'it-nesses BssfriiA Mi ALLEN? 3e sprocket skeieton is provided with 

